More than one sweet tabaiba: disentangling the systematics of the succulent dendroid shrub Euphorbia balsamifera

The sweet tabaiba (Euphorbia balsamifera Ait.) is one of the classical examples of the disjunct biogeographic pattern known as Rand Flora. This species is currently circumscribed to comprise two subspecies, Euphorbia balsamifera subsp. balsamifera and E. balsamifera subsp. adenensis (Deflers) P.R.O....

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Detalles Bibliográficos
Autores: Riina, Ricarda, Villaverde, Tamara, Rincón-Barrado, Mario, Molero, Julià, Sanmartín, Isabel
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2020
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/234249
Acceso en línea:http://hdl.handle.net/10261/234249
Access Level:acceso abierto
Palabra clave:Divergence times
Euphorbia
Euphorbiaceae
Macaronesia
Phylogenomics
Rand Flora
Sahara
Sahel
Taxonomy
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spelling More than one sweet tabaiba: disentangling the systematics of the succulent dendroid shrub Euphorbia balsamiferaRiina, RicardaVillaverde, TamaraRincón-Barrado, MarioMolero, JuliàSanmartín, IsabelDivergence timesEuphorbiaEuphorbiaceaeMacaronesiaPhylogenomicsRand FloraSaharaSahelTaxonomyThe sweet tabaiba (Euphorbia balsamifera Ait.) is one of the classical examples of the disjunct biogeographic pattern known as Rand Flora. This species is currently circumscribed to comprise two subspecies, Euphorbia balsamifera subsp. balsamifera and E. balsamifera subsp. adenensis (Deflers) P.R.O. Bally, with their respective areas of distribution separated by a gap of about 2000 km across central-east Africa. We use multiple sources of evidence including phylogenomics, morphometrics, lineage ages, and climatic niche analysis to disentangle the confusing taxonomy around this charismatic Euphorbia lineage. Based on our integrative approach, we reestablish the two current subspecies to the rank of species (E. balsamifera Ait., E. adenensis Deflers) and resurrect the long forgotten E. sepium N.E. Br., a commonly used species in the western Sub-Saharan and Sahelian regions. The taxonomic treatment presented here includes an identification key, updated morphological descriptions, and lectotypification of several names.We thank the staff of the cited herbaria for allowing us to study their collection, especially C. Chatelain (G), A. Marrero (LPA), H. Rainer (W), F. Stauffer (G), J. Vicens (BCN), R. Vogt (B), and M. Hjertson (UPS) for sending us images of herbarium specimens. We thank Irene Navas for help with leaf measurements; Lisa Pokorny for helping with fieldwork; Patricia Barberá, Otavio Marques, and Guilherme Antar for checking specimen data for us in some herbaria. Finally, we are grateful to members of the International Euphorbia Society for providing valuable information on the studied species, especially to Rikus van Veldhuisen, Susan Carter, Volker Buddensiek, and Wolfgang Ewest. Authors were supported by grants CGL2015–67849‐P (MINECO/FEDER) to IS and CGL2015–73621‐JIN (AEI/FEDER) to RR. We appreciate the valuable comments from the editor and two anonymous reviewers, and helpful discussions with Victor Steinmann.Peer reviewedJohn Wiley & SonsMinisterio de Economía y Competitividad (España)Riina Olivares, Ricarda Graciela [0000-0002-7423-899X]Villaverde Hidalgo, Tamara María [0000-0002-9236-8616]Rincón- Barrado, Mario [0000-0001-5571-1473]Sanmartín, Isabel [0000-0001-6104-9658]Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202120212020info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Postprintinfo:eu-repo/semantics/acceptedVersionhttp://hdl.handle.net/10261/234249reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttps://doi.org/10.1111/jse.12656Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/2342492026-05-22T06:33:51Z
dc.title.none.fl_str_mv More than one sweet tabaiba: disentangling the systematics of the succulent dendroid shrub Euphorbia balsamifera
title More than one sweet tabaiba: disentangling the systematics of the succulent dendroid shrub Euphorbia balsamifera
spellingShingle More than one sweet tabaiba: disentangling the systematics of the succulent dendroid shrub Euphorbia balsamifera
Riina, Ricarda
Divergence times
Euphorbia
Euphorbiaceae
Macaronesia
Phylogenomics
Rand Flora
Sahara
Sahel
Taxonomy
title_short More than one sweet tabaiba: disentangling the systematics of the succulent dendroid shrub Euphorbia balsamifera
title_full More than one sweet tabaiba: disentangling the systematics of the succulent dendroid shrub Euphorbia balsamifera
title_fullStr More than one sweet tabaiba: disentangling the systematics of the succulent dendroid shrub Euphorbia balsamifera
title_full_unstemmed More than one sweet tabaiba: disentangling the systematics of the succulent dendroid shrub Euphorbia balsamifera
title_sort More than one sweet tabaiba: disentangling the systematics of the succulent dendroid shrub Euphorbia balsamifera
dc.creator.none.fl_str_mv Riina, Ricarda
Villaverde, Tamara
Rincón-Barrado, Mario
Molero, Julià
Sanmartín, Isabel
author Riina, Ricarda
author_facet Riina, Ricarda
Villaverde, Tamara
Rincón-Barrado, Mario
Molero, Julià
Sanmartín, Isabel
author_role author
author2 Villaverde, Tamara
Rincón-Barrado, Mario
Molero, Julià
Sanmartín, Isabel
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Ministerio de Economía y Competitividad (España)
Riina Olivares, Ricarda Graciela [0000-0002-7423-899X]
Villaverde Hidalgo, Tamara María [0000-0002-9236-8616]
Rincón- Barrado, Mario [0000-0001-5571-1473]
Sanmartín, Isabel [0000-0001-6104-9658]
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Divergence times
Euphorbia
Euphorbiaceae
Macaronesia
Phylogenomics
Rand Flora
Sahara
Sahel
Taxonomy
topic Divergence times
Euphorbia
Euphorbiaceae
Macaronesia
Phylogenomics
Rand Flora
Sahara
Sahel
Taxonomy
description The sweet tabaiba (Euphorbia balsamifera Ait.) is one of the classical examples of the disjunct biogeographic pattern known as Rand Flora. This species is currently circumscribed to comprise two subspecies, Euphorbia balsamifera subsp. balsamifera and E. balsamifera subsp. adenensis (Deflers) P.R.O. Bally, with their respective areas of distribution separated by a gap of about 2000 km across central-east Africa. We use multiple sources of evidence including phylogenomics, morphometrics, lineage ages, and climatic niche analysis to disentangle the confusing taxonomy around this charismatic Euphorbia lineage. Based on our integrative approach, we reestablish the two current subspecies to the rank of species (E. balsamifera Ait., E. adenensis Deflers) and resurrect the long forgotten E. sepium N.E. Br., a commonly used species in the western Sub-Saharan and Sahelian regions. The taxonomic treatment presented here includes an identification key, updated morphological descriptions, and lectotypification of several names.
publishDate 2020
dc.date.none.fl_str_mv 2020
2021
2021
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Postprint
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/234249
url http://hdl.handle.net/10261/234249
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv https://doi.org/10.1111/jse.12656
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv John Wiley & Sons
publisher.none.fl_str_mv John Wiley & Sons
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.81155

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